单项选择题

Which statement is NOT true according to this article

A． Energy will be expensive and in short supply.
B． There will be more cars than ever in 1997.
C． The air will be cleaner in 1997.
D． People will walk everywhere instead of going by cars.

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单项选择题

Article Life Without Fuel is ______.

A． a scientific study of life in 1997
B． an imaginary account of life in 1997
C． a history of life in 1997
D． a difficult time of life in 1997

单项选择题

The FAA demonstration in para. 2 refers to ______.

A． the out-dated program FAA had used earlier for air-traffic control
B． the newly devised air-traffic control program on display
C． the showing of the location of low flying aircraft and private jets
D． the graphically screened commercial airliners